Added initial files

Author: astrofrog

LICENSE

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+Copyright (c) 2019, Thomas P. Robitaille
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

README.rst

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+This is a meta-package which can be used in ``pyproject.toml`` files to
+automatically provide the oldest supported version of Numpy without having to
+list them all. In other words,
+
+```toml
+[build-system]
+requires = [
+    "wheel",
+    "setuptools",
+    "numpy==1.13.3; python_version=='3.5',
+    "numpy==1.13.3; python_version=='3.6',
+    "numpy==1.14.5; python_version=='3.7',
+    "numpy==1.17.3; python_version>='3.8'
+]
+```
+
+can be replaced by:
+
+```toml
+[build-system]
+requires = [
+    "wheel",
+    "setuptools",
+    "oldest-supported-numpy"
+]
+```
+
+And as new Python versions are released, the ``pyproject.toml`` file does not
+need to be updated.

setup.cfg

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+[metadata]
+name = oldest-supported-numpy
+description = Meta-package that provides the oldest supported version of Numpy
+author = Thomas Robitaille
+author_email = [email protected]
+license = BSD
+url = https://reproject.readthedocs.io
+version = 0.1
+
+# The Numpy pinnings below have been adapted from those in the
+# SciPy package, which is released under a 3-clause BSD license:
+# https://github.com/scipy/scipy/blob/master/LICENSE.txt
+
+[options]
+python_requires = >=3.5
+install_requires =
+    numpy==1.13.3; python_version=='3.5' and platform_system!='AIX'
+    numpy==1.13.3; python_version=='3.6' and platform_system!='AIX'
+    numpy==1.14.5; python_version=='3.7' and platform_system!='AIX'
+    numpy==1.17.3; python_version>='3.8' and platform_system!='AIX'
+    numpy==1.16.0; python_version=='3.5' and platform_system=='AIX'
+    numpy==1.16.0; python_version=='3.6' and platform_system=='AIX'
+    numpy==1.16.0; python_version=='3.7' and platform_system=='AIX'
+    numpy==1.17.3; python_version>='3.8' and platform_system=='AIX'
+
+[bdist_wheel]
+universal = 1

setup.py

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+from setuptools import setup
+setup()